Method of making molds for ornamental flowerpots



I ma 19, 1925.

. 1,538,607 A. ANDERSON ET AL D OF MAKING MOLDS FOR ORNAMENTAL FLOWERPOTS Filed June 30, 1924 Fg.4 I

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Viclfbr .Alxelson Patented May 19, 1925.

ANDREW ANDERSON AND.VIOTOB skatesor SACRAMENTO, CALIFORNIA. 1

METHOD OF MAKING MOLDSTFO'R ORNAMENTAL FLOWERPOTS.

Application filed June 30,1924. Serial No. 723,223.

To all whom it may concern:

lie it known that we, ANDREW A DERSON and Vrororz AxnLsoN, residing at Sacramento, county of Sacramento, State of California, have invented certain newv and Molds for Ornamental Flower-pots; andwe do declare the following to be a full, clear, and exact description ofthe same, reference being had to the accompanying drawings, and to the characters of reference marked thereon, which forms part of this application. i y

This invention relates to the pottery making or ceramic art, and particularly to a method of makingmolds for use in turning out flower and similar pots having fanciful designs in relief or embossed on the sides.

Heretofore, in forming molds for pots of this character, it has been necessary to make them in sections, in order to enable them to be withdrawn from the master core on which the ornamental design is first made and which appears'in themold in the reverse order or countersunk. This method is una satisfactory and expensive for various reasons well known to those who have had occasion to make use of the method and the molds themselves, and pots made from such molds almost invariably show the dividing line between the mold sections in the, shape of a thin rib as in metal castings, which at best does not add to the ornamental and finished appearance of the pot.

It is therefore the principal object of our invention to provide a method for making molds for pots of the above named character, such as will enable the moldto be made in one piece, thereby doing away with the sectional form of molding 110W used.

Our method also enables a number of different ornamental designs being formed with the use of but a single main core member, thus cutting down on the space necessary to carry the cores of a considerable number of different designs. 7 Our method is very simple and may be quickly and easily carried out, and is much less expensive than the method now in vogue. H i

These objects we accomplish by means of such structure and relative arrangement of parts as will fully appear by a perusal of the following specification and claims.

In. the drawings similar characters of reference indicate corresponding parts in the several views:

Fig. 1 is a side elevation of a core usedn connection with the making of our molds. useful Improvements 1n Methods of Making Fig. 2 is aside view of a detachable orna mental design piece.

Fig. 3 is a side view, partly in section, of'the core and surroundingshell assembled to receive the mold material, showingthe ornamental pieces on the sides I of the core.

' Fig. fl: is a sectional view of the assembled parts, with the moldpoured.

Fig. 5 is asimilar view showing themold after beingwithdrawn from thecore and with the ornamental thereto.

1g. (his a similar View, showing the pieces still adhered removed.

Fig. 7v 1s a side view of an ornamental pot made from our mold.

Referring now more particularly to the characters of reference 2 is formed withthe core to support and mold after the ornamental pieces have been 1 denotes the core member used r center a. shell 3 in spaced; relation to the 1 core, the space between the core and shell the thickness of the determining of course mold to be made. i

The design on the surface of the core is what controls the design of the pot a ultlmately produced. In the present case we prefer to provide the lower portion of the core, which corresponds to the upper por- 7 tion of the ot with a 3611113118111? lain V P a l P form of design in relief as at 5, which 1s of such a nature however as not to mterfere with the drawing of the mold fromthe I The main ornamental design features however, of any suitable shape and form,

and which are to go on the smooth and Before the shell 3 is placed about the core, the pieces 6 are temporarily secured to the core'in the proper locations, as shown for instance in Fig. 3, by a suitable adhesive,

, such as that known in the industry as clayslip. The shell is then located in position, i

and the material 7 for themold is poured in to fill the space between the shell and core, said material surrounding the pieces 6 on all sides thereof, as shown in Fig. L

As soon as the material (usually plaster of Paris is set, the shell is withdrawn, and the mold 8 is then raised from the core.

In doing this, the pieces 6) are pulled loose a from the core and remain in the mold, as shown in Fi g. a. Said pieces are then peeled out from the'recesses 9 formed thereby in the. mold, and remain in an undamaged condition to be used again, being of a material which does not tend to permanently adhere to the plaster of the mold. These recesses of course have the imprint of the outer faces of the ornamental pieces, so that when the pot a is formed from said mold, the ornamental design shows on the pot as an integ'ral portion thereof and of course, in relief,

as at 10. g

It will therefore be seen that we have provided a method for the purpose which fulfills the various objects of the in'ventionas set forth hereinbefore.

It is to be understood that detachable ornamental pieces may be applied to the core in place of the permanent design 5, and that 2. A method of making molds forpots and the like having embossed ornaments on their sides consisting in employing a core about which the material forming the mold is poured, providing independent pieces having the desired ornamental configuration, and causing said pieces to temporarily adhere to the sides of the core.

3. A method of making molds for pots and the like having embossed ornaments on their sides consisting in employing a smooth faced core about which the material forming the mold is poured, providing independent pieces having the desired ornamental configuration, and temporarily fastening said pieces on said core in the desired location in such a. manner that they will be disadhered from the core and withdrawnwith the mold when the latter is withdrawn from the core. i i

l. A method of makingmolds for pots and the like having embossed ornaments on their sides consisting in employing a smooth faced core about which the material forming the mold is poured, providing independent pieces having the desired ornamental configuration, temporarily fastening said pieces on said core in the desired location in such a manner that they will be withdrawn from the core when the mold is withdrawn and will then. adhere to the latter, and then removing said pieces from the recesses fori'nedthereby in the mold.

5. A method of making molds for pots and the like having embossed ornaments on their sidesconsisting in employing a smooth facedcore about which the material forming the mold is poured, providing independent pieces having the desired ornamental configuration, said pieces being of a flexible nature and one face thereof beingsmooth, and securing the smooth faces of the pieces onto the sides of the core in any desired positions by a temporary adhesive. p

In testimony whereofwe aiiix our signatures.

ANDREW ANDERSON. VICTOR AXELSON. 

